Timothy Michael Darnauer, DO
Timothy Michael Darnauer is a Surgical Critical Care Physician provider (Surgery) practicing in Reston, VA, registered in the NPPES registry with NPI 1659640092 since 2011. The credential DO stands for Doctor of Osteopathic Medicine.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1659640092 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Timothy Michael Darnauer |
| Credential | DO |
| Sex | Male |
| Practice address | 1850 TOWN CENTER PKWY, Reston, VA, 20190 |
| Phone | 7036899000 |
| Enumeration date | 2011-12-14 |
| Last updated in NPPES | 2020-12-07 |
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 390200000X | Student in an Organized Health Care Education/Training Program | Secondary | — | — |
| 2086S0102X | Surgical Critical Care Physician | Primary | 0102206140 | VA |
DO — Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential
Copy-ready billing details
Provider: Timothy Darnauer, DO NPI: 1659640092 Taxonomy: 2086S0102X (Surgical Critical Care Physician) Address: 1850 TOWN CENTER PKWY, Reston, VA, 20190
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1386646420 | Robert Shor | Individual | Cardiovascular Disease Physician | Reston, VA |
| 1700882537 | Meera Goradia | Individual | Anesthesiology Physician | Reston, VA |
| 1932109220 | Eric Shea | Individual | Anesthesiology Physician | Reston, VA |
| 1932101342 | Paolo Hernandez | Individual | Emergency Medicine Physician | Reston, VA |
| 1194717926 | Charles Dougherty | Individual | Anesthesiology Physician | Reston, VA |
| 1972590099 | Charles Dyer | Individual | General Practice Physician | Reston, VA |
| 1699763128 | James Slepica | Individual | Certified Registered Nurse Anesthetist | Reston, VA |
| 1699763961 | Behjat Alemi | Individual | Neonatal-Perinatal Medicine Physician | Reston, VA |
Verify this record
Cross-check NPI 1659640092 against the authoritative CMS record: view Timothy Michael Darnauer on the official NPPES registry .
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty. Read the full guide or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2020-12-07.